Hello macfoo
Unfortunately I cannot find the email from the author of the theme “GlossyBlue” – https://www.ndesign-studio.com/
From memory it was a quick edit in the themes HTML, also see his page on the theme at https://www.ndesign-studio.com/blog/updates/glossyblue-theme-update/
It was a simple fix and I think it has been incorporated into the the current version.
Best Luck!
Jon